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【判断题】
只能用频率这个物理来衡量交流电变化快慢的程度。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
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【单选题】石英的三种高温形变体，之所以晶型转变困难，主要原因在于硅氧四面体的连接方式不一样，其中在α-石英中，共顶连接的两个硅氧四面体的连接方式为（ ）
A.
以共顶的氧作为对称中心
B.
在共顶的氧离子处存在对称面
C.
Si-O-Si 键角为150°
D.
Si-O-Si 键角为137°
【简答题】完形填空。 Peter has a sister 1 a brother. His sister's name is Lisa. His brother's name is Nick. Lisa 2 music.She can 3 very well. She wants 4 the music club. Peter and Nick can play soccer, but they can'...
【单选题】Lisa said that she married him because she was completely ______ by his manners.
A.
held in
B.
brought in
C.
lain in
D.
taken in
【单选题】石英的三种高温形变体，之所以晶型转变困难，主要原因在于硅氧四面体的连接方式不一样，其中在α-方石英中，共顶的两个硅氧四面体的连接方式为（ ）
A.
以共顶的氧作为对称中心
B.
在共顶的氧离子处存在对称面
C.
Si-O-Si键角为150°
D.
Si-O-Si键角为137°
【简答题】用单词正确形式填空 1. This is _____(I )sister. 2. These _______(be) Gina and Lisa. 3. These are his ______(friend). 4. Are these her _______(cousin)? 5. John ______(be) her son.
【判断题】目前,按网卡所支持的带宽分,主要有 10Mb/s、100Mb/s、1Gb/s网卡,以及10/100Mb/和10/100/1000Mb/s自适应网卡。
A.
正确
B.
错误
【单选题】What has Jeremiah Spears learned from his friend Lisa?
A.
To put away a part of the money he receives.
B.
To buy what he needs first.
C.
To list his shopping items.
D.
To make a chart of his wants.
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